Typewriter desk



J. WALDHEIM TYPEWRITER DESK Sept'. 3, 1929.

2 sheets-sheet I 1 Filed Oct. 18, 1924 ff im A/fa/w SePt- 3, 1929 -L'WALDl-n'aml 1,727,000

TYPEWRITER DESK Filed Oct. 18, 1924 2 Sheets-Sheet 2 n normally kept out of the way.

Patented Sept. 3, 1929.

UNITED STATE intese, PATENT. crie-ice.-y

roHN WALDHELM, `or ELIZABETH, NEW JEnsExlAssieNon- ToUNDEEWoon ELLIOTT FISHER COMPANY, or NEW YORK, N. Y., A coEroE-ATIoN 0E DELAWARE.

' TYPEWEITER IDESK.

Applicant@ fufi'oc'toter is, l1924. seriaifNpl 744,319.

This invention relates to improvementsin desks, having mechanism for locating a typewriting machine in typing o r non-typing position.

1n` my application No.

with a sound-deadening cabinet.

.to manually bring the typewriter into typing position, in a convenient location in front ot the desk from a position in the rear of the desk wheie `the typewriter is In orderto bring tlie typewriter into typing position means are provided in said application to sink the ront section of the desk-top simultaneously with the forward advancing of the typewriter-carrying section in the rear of the desk, so that, when the rear section reaches the typing position, the front section willV have been lowered enough to clear the typewriter-Carr'yingsection.

The strip, separating the twotable sections in said' application, `is removed or swung on a suitable hinge out of thel way and'at the same time, due to specially pro- 4 vided linkage, a vertically-placed strip in front of the desk, which supports the front section, is also removed so as to leave the two front and rear table sections free rom each other and free to be moved in relation to the desk. l

Whenthe strips locking said two sections have been removed, the front section of the table is forced downwardly and by means of suitable linkage the rear'table carrying the typewriter isy swung 'forwardly and downkwardly to place the typewriter in a convenient typing position.

Among the new` features of this invention *1 Y y are, a new linkagedesigned to concoinitantly- 25 43st 1113011 a. 191ml@ 56 whcll'fofm all integral part ofthe desk.` There is rprovided operate the two table sections, a, supporting 4strip under the front section to effectively take the downward thrustof 4saidkfront seetion, and' means for automatically -with drawing said supporting strip `from under; ,OTWM 9nd, by means VO. il pill, 28, the said front section simultaneously with vthe yoperation ofthe ordinary lockingstrip be! tween the two table sections.

in the aeeonipanying drawings,

741,348, filed ,'October `3, 1924 (now Patent No. 1,656,714, datedJanuary *17, 19.28), a desk is shown for use with typewritinginachines'equipped `Figure 1 is a vertical sectional view yon line 1 `-"1 of Figure 4,l showing the typewriterI in. normal or ineffective position.

F igure2 'is also ya vertical sectional .view on line 1 1 oii'lFigur'e 4, but showing-the typewriter in accessible or typing position.

` Figure 3 is a horizontal vertical view onv the line S-S'of Figure 4.y

Figure 4 is=a front elevation,"partly in section and broken away, showing the typewriter in normal or ineffectiveposition;l

Figure .5 isa front elevation, showing the typewriter in typing position.

Inv order' tov bring' .the ttypewriter 'into' typing'position, as shownin Figure 2, `from the normal or standing position shown fin Figure 1, it will be first necessary to unlock l the v'front and rear sectionsfof the table' byA removing a locking strip Y12 between them, i

and 'also to remove a supporting" strip 15 which Anormally takes the downward thrust of' the vrfront section 1 0. ofthe table andis mounted on a hinge 16. .The locking'strip 12 vis' swung on a hinge 14 and is folded fiaty over the `itront section .1 O, "and, while be moved Iforward.

Unden the front`Y section 10 there are mounted, each side of the desk, two downwardly extendingbrackets 20 and 21, both 'astenedfto the front section 10 by means of 'a'.ifraine'22. The' forward bracket 20 isf.9

operatively connected to `a T-shap'ed plate 'or guide-link 23 .byineans of pin 24, said plate '23 ,bei'ngzinountedlon "a fulcruin stud another T-shaped plate or guide-link 27 similar to plate 2 3, andalso fulcru'ined at 26 upon the plate 56, and supportingv at it's In arder that'the rear front 27 is swung, is placed lower than the pivot4 25, which carries the plate 23, and, by reducing the distance between the fulcrum 26 and the link connection 30 as compared with the distance between the fulcrum 25 and link connection 31, while keeping constant the leverage supporting the front sectionl() of the table, the rate of downward travel will be increasedon the plate 27 in relation to the plate 23, thereby clearing the space occupied by the lockingstrip 12, so that it will not interfere withthe rear section 11 when the same is moved forward to place the typewriter in typing position as shown in Figure 2.

The rear section carrying the typewriter is mounted on suitable linkage for the purpose of supporting the weight of the machine while it is beingl moved from, ineffective `to effective positionand, to thisl end, the rear section 11 is provided. with two downwardly-extending brackets 42 and 43 operatively connected to two downwardlyextending levers or links 32 and 33, respectively fulcrumed at 34 andv 35 upon two brackets 36 and 37 mounted upon the desk sides 51 by means of fasteners 38.

The front section 10 ofthe desk top is operated concomitantly withlthe rear section 11 by means of a link 39 operatively connected at the uppermost endto the plate 23 at41, and at the lower end to a downwardlyextending arm 57, which forms an inte ral part of lever 33by means of a pin 40. he plate 23 fulcrumed-'at`25 when movingdownward'will'force the link 39 in the same direction, andv actuating on the extending arm 57, by means. ofl the pin 40, will cause the rear section 11 issubstantially'in the samev plane as the shelfJ 44v andforms a continuation of the section 11.

Stop-pins 46 and 47 are designed to limit the travel ofthe movable top sections. The pin 46 interposes the lever 33, thus preventing the rearfsection from being forcedtoo far back,y while. the pin 474 interposes the. lever 32 andlimits the" forward travel of said rear section, so astohold the same in its lowered or typing position. i

A counterbalancing spring 48 is operatively connectedf to the linkage by means of a fastener 49 upon lever 32, and is at the other end fastened to the sides of the desk at 58, being placed in relation to the link 32 and4 to the lfast end of the spring 48, so that its tension will gradually increase as the link is moved forward, the spring being stretched the most when the most power is needed to counterbalance the weight of the typewriter. This spring 48 is consequently necessary to restore the typewriter to ineffective position with the least effort on the partJ of the operative.

It will benoted that the mechanismhere- 4 slidably-mounted drawers 52 in guides 53,`

and the top of the desk, which is formed by the manually-operable front and rear sections, extends the full width of the desk except for the two end bars 54 at the opposite sides of the desk in line with the contiguous edges of the top sections.

The noiseless cabinet' 60, which encloses a typewriter 59, extends substantially the full width of the desk and includes al plurality ofk built-in drawers 55 and other features disclosedin my said application, No. 741,348.

From the foregoing, it will be understood that there is provided a desk having a top which is divided into two main sections, namely, a forward section 10 and a rear section the rear section supporting the typewriting'machine 59; that' the forward section 10 is provided with a novel guiding means comprising substantially parallel links 23 yand 27, coupled to each other by the connecting link 29, by which guiding means said forward section may be sunk into the desk; that the rear section is guided on parallel links'32 and 33; and that there is provided a connecting link 39 between the two sets of guide-links, so that the typewriting machine is swungforwardly by the rear section-11' simultaneously with the sinking of theforward'section 10 into the desk.

It' willffurther be understood that the forward section 10`is provided with a panel 15 hingedz'at its under side and near the front edge of said section, to close the opening in thefrontwall of the desk into which opening'the yrear section 11v swings when the machine is Ybrought forward; that this panel 15 serves as a means to'preventthe accidental 'downward movement'of the forward desktop section 10;.that there is pivoted a strip 12 between the forward and reardesk-top sections to prevent accidental forward movement of the rear desk-top section 11; ,and that said panel 15 and said strip 12vare connected to each other by the; link 17, so that they may be rendered concomitantly ineffective prior to bringing the machine to its typing position. i

It will also be understood that the intermediate strip ,12 folds back on the forward` n desk-top section when it is rendered ineffecimprovements may be used without others.

Having thus described my invention, I claim:

1. The combination of a desk having a movable top, comprising a front table-section and a rear table-section normally in the same horizontal plane, a movable locking member separating said two sections normally inl the same plane and secured to the front section, a bodily displaceable supportv,ing member takingthe downward thrust of the front table-section, means operatively connecting said supporting member to said locking member for concomitantly rendering both members ineffective by the operation fof said locking member, and movable means connecting said sections for moving them.

2. rEhe combination of a desk having a movable top, comprising a front table-section and a rear table-section normally in the same horizontal plane, a locking member separating said two sections normally in the same plane and secured to the front section, al bodily displaceable supporting member taking the downward thrust of the front table-section, means operatively connecting said supporting member to said locking member for concomitantly rendering both members ineffective by the operation of said locking member, and means for sinking said front table-section within the desk simultaneously with the forward advancement of the rear table-section.

8. In combination, a desk including side and rear panels, drawers, and an opening in the front of the frame of the desk, a sectional top including a front section and a rear section therefor horizontally movable to and in said opening and separated from the front section by an interposing comparatively narrow locking strip, movable means for moving said sections, a movable supporting strip in said opening and under the forward edge of the front section, said strips hinged to the front section, means connecting the strips together for operating them concurrently, and a closure shelf normally beneath the rear section, and substantially inthe same plane with said rear section When the latter is placedin typing position in said opening.

tjlncombination, a Vdesk including side and rear panels, drawers in the front of the desk, a sectional topy including a front section and a rear section therefor and movable in a horizontal plane and separated from the front section by an interposing comparatively narrow locking strip, a movable supporting strip under vthe forward edge of the front section, a closure shelf normally beneath the rear section, and. substantially in the same plane with said rear section when the latter is placed in typing position at the front of the desk, movable members operatively connecting said locking strip andv said supporting strip, whereby both strips are simultaneously operated by the operation of said locking strip, means for rendering manuallyoperablc said locking strip, andmovable supports for moving said front and rear sections, and maintaining them in a normal horizontally-aligning position with the front section and loc-king strip in horizontal planes substantially parallel with the shelf when the rear section is in said `typing position,

said supports being arranged laterally of said ldrawers andv concealed by the side panels. f

f 5.`In combination, a Idesk including side and rear panels, drawers, an opening in the frame in the front of the desk, a sectional top including afront section and a rear section therefor movablein a horizontal plane forwardly to said opening and'separated from the front section by an interposing comparatively narrow locking strip, a movable supporting strip in said opening under the forward edge of the front section, a closure shelf normally beneath the rear section, and substantially in the same plane with said rear section when the latter is placed in typing position, movable members operatively connecting said locking strip and said supporting strip -to effectively operate both strips simultaneously by the operation of said locking strip, means for renderin manually operable said locking strip, and movable supports for said front and rear sections, maintaining them in a normal horizontally-aligning position with the locking strip, said supports being arranged laterally of said drawers and concealed by the side panels, said movableA supports for the front section controlled by the travel of the rear section, and the operation of the locking strip displacing the supporting strip from said opening and permitting the front section to be forced downwardly within said opening and desk, previous to the advancing of the rear section to said opening and for effectively preventing the front section from interfering with the operation of the rear section.

6. In a. desk having a vertical opening in its front frame extending downwardly from the top of the desk, a flat top comprised of front and rear sections, the front sections sinkable within the desk and the rear section horizontally movable forward to the front of the desk, a locking strip between said sections, a supporting strip pivoted to the under side of the front section at its front edge and depending in said opening, means connecting said two strips for moving them into positions to support the front section and retain the sections l'iorizontally aligned or out of said supporting andlocking positions to permit the sections to be moved, whereby the movement of the locking strip from between the sections moves the supporting strip from said opening, vertically placed supporting links and levers, the levers having long and short arms, said links and levers pivoted at their lower ends to the desk-frame and at i their upper ends to the rear section, and operable to move the rear section in a hori zontal plane to the front of the desk and lower it in saidr opening, front and rear brackets Xed to the front section, front and rear T-shaped plates, the upper ends of the cross of said plates pivoted at different elevations to the desk-frame, links connecting lthe lower ends of the cross of the plates and the forward ends of the plates pivoted to said front and rear brackets, respectively, and vertical connecting links pivoted at their upper ends to said front plates and at their lower ends tothe short arms of said levers.

7. In a desk, the combination of front and rear sections and a middle strip normally lying between saidv sections, the three together normally forming a flat top for the desk, T-shaped links extended forwardly and rearwardly of the desk, the forward ends of their stems pivoted to the front section, and the upper ends of their bars pivoted to the desk-frame, links pivotally connecting the lower ends of said bars, vertical levers, their upper ends pivoted to the rear section and their lower ends to the desk-frame, vertical links, their upper ends pivoted to one of the T-shaped links and their lower ends to one ofthe levers, and hinges connecting the middle strip to the front section. v

8. In a desk,the combination of front andI rear sections and a middle strip normally lying between the sections andl hinged to the front section, the three together normally constituting a Hat top for the desk, a vertical panel, its upper edge hinged to the under side of the front section at its front edge and its lower edge rest-ing upon the desk-frame, an arm extending forwardly from the middle strip, a link, its rear end pivoted to said arm and its front end to the lower edge of the panel, T-shaped links extended forwardly and rearwardly of the desk, the forward ends of their stems pivoted to the front section and the upper ends of their bars pivoted to the desk-frame, links pivotally connecting the lower ends of said bars, vertical levers, their upper ends pivoted to the rearv section and their lower ends to the desk-frame, and-` vertical links, their upper ends pivoted to one of the T-'shaped links and their lower ends to one ofthe levers.

JOHN WALDHEIM. 

